Argentines started voting Sunday in a runoff election in which pro-business right-winger Mauricio Macri will try to end 12 years of left-wing government by beating center-leftist Daniel Scioli.

Polling stations opened at 8:00 am (1100 GMT) under sunny blue skies in the capital Buenos Aires, a key electoral territory. Voting was due to close at 2100 GMT with first results expected in the following hours.